/* 上传图片预览弹出层 */
if (typeof isloaded == 'undefined') {
	$(function(){
		$(window).resize(function(){
			var winW = $(window).width();
			var winH = $(window).height();
			$(document).delegate('.upload-pre-item img', 'click', function() {
				//如果没有图片则不显示
				if($(this).attr('src') === undefined){
					return false;
				}
				// 创建弹出框以及获取弹出图片
				var imgPopup = "<div class=\"uploadback\"><div id=\"uploadPop\" class=\"upload-img-popup\"></div></div>"
				var imgItem = $(this).parent().html();

				//如果弹出层存在，则不能再弹出
				var popupLen = $(".uploadback").length;
				if( popupLen < 1 ) {
					$(imgPopup).appendTo("body");
					$(".upload-img-popup").append($(this).parent().clone());
					var $_a = $("<a class=\"close-pop\" href=\"javascript:;\" title=\"关闭\"></a>");
					$(".upload-img-popup").append($_a);
				}

				// 弹出层定位
				var uploadImg = $("#uploadPop").find("img");
				var popW = uploadImg.width();
				var popH = uploadImg.height();
				$(".upload-img-popup").css({
					// "max-width" : winW * 0.9,
					"left": '50%',
					"top": '50%',
					"margin-left": -popW/2-10,
					"margin-top": -popH/2-10,
				});
			});

			// 关闭弹出层
			$("body").on("click", "#uploadPop .upload-pre-item  , .uploadback", function(){
				$(".uploadback").remove();
			});
		}).resize();
	})
};
var isloaded = true;